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Finding the Fourth Proportional to 344,013.55, 515,815.89 and 130,797.07

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Solution

The fourth proportional to 344,013.55, 515,815.89 and 130,797.07 is: 196,117.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,013.55 : 515,815.89 = 130,797.07 : x
  2. Step 2: Convert to fraction form
    344,013.55/515,815.89 = 130,797.07/x
  3. Step 3: Cross multiply
    344,013.55x = 515,815.89 × 130,797.07
  4. Step 4: Simplify right side
    344,013.55x = 67,467,208,206.70
  5. Step 5: Solve for x
    x = 67,467,208,206.70/344,013.55
  6. Step 6: Final answer
    x = 196,117.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.